"Deliver All": don't re-mark as delivered if already set

www/assets/js/map.js

@@ -87,6 +87,9 @@ $("#app").on("click", "#package-info-sheet #package-info-deliver-all", function
         if (packages[i].id == coordid) {
             package = packages[i];
             for (var j = 0; j < package.items.length; j++) {
+                if (package.items[j].delivered) {
+                    continue;
+                }
                 markDelivered(package.items[j].id, true);
             }
             break;